Johnny Test

Johnny's Big Dumb Sisters

E14    Nov 26, 2009    11m    TV-Y7
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The twins' latest invention accidentally makes them dumb thanks to Johnny right before their scholarship interview.
Where to Watch Johnny's Big Dumb Sisters
Cast of Johnny's Big Dumb Sisters
  • James Arnold TaylorJohnny Test (voice)
  • Maryke HendrikseSusan Test (voice)
  • Louis ChirilloDukey (voice)
  • Lee TockarThe General / Bling-Bling Boy (voice)
  • Ian James CorlettHugh Test (voice)
  • Kathleen BarrLila Test (voice)
  • Scott McNeilMr. White / Bumper (voice)
  • Bill MondyMr. Black (voice)

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